Ms Aspin, 34, who met Winehouse's former husband in rehab three years ago, told The Sun: "The doctors said they put him in a coma to help him and due to infection. I'm praying he'll survive, but I'm having to prepare myself that he may never wake up."

Fielder-Civil has long battled heroin addiction and spent time in prison in 2007.

The former music video assistant married pop star Winehouse in 2007 and they divorced two years later.